What i need is to be able to switch / control the lights on when it's starts to get dark and off again when it gets light - not just when the sunrises and/or sunset's. So a room sensor (idealy built into the light switch) that monitors the light level and switches on/off inline with a set value. Some form of Hysterisis needs to be added so that (for instance) people walking past the sensor that cast a shadow does not trigger the lights on/off. My plan is for when it gets dark (to a selective level) the curtains are drawn automatically and the lights fade to on...